*{
  padding: 0;
  margin: 0;
}
body,html{
  width: 100%;
  height: 100%;
}
body{
  display: flex;
  flex-flow: column;
}
#app{
  width: 100%;
  display: flex;
  flex-flow: column;
  flex: 1;
}
a {
  text-decoration: none;
}
li{
  list-style: none;
}
